Distortions is a phenomenon in geometrical optics and spot welding characterized by deviations from the ideal shape, position, or alignment of optical wavefronts or welded joints, respectively, resulting from asymmetric thermal expansion, refractive index variations, or mechanical stress during the manufacturing process.
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On Two Metaphors for Learning and the Dangers of Choosing Just One
Anna Sfard · Educational Researcher · 1998 · 3.6K citations
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Centre National de la Recherche Scientifique
Paris, France
50 h-index
689 publications
35.5K citations
University of California, Berkeley
Berkeley, United States
43 h-index
170 publications
19.3K citations
Stanford University
Stanford, United States
42 h-index
185 publications
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The University of Texas at Austin
Austin, United States
40 h-index
202 publications
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University of Cambridge
Cambridge, United Kingdom
39 h-index
149 publications
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University of Oxford
Oxford, United Kingdom
36 h-index
183 publications
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University College London
London, United Kingdom
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183 publications
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Massachusetts Institute of Technology
Cambridge, United States
35 h-index
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- Physical Review Letters
PRL · 93 publications · 8.6K citations
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- IEEE Transactions on Image Processing
83 publications · 12.1K citations
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- Journal of the American Chemical Society
JACS · 66 publications · 7.5K citations
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- Physical review. B, Condensed matter
PRB · 74 publications · 7.4K citations
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- Magnetic Resonance in Medicine
MRM · 86 publications · 8.1K citations
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